公开(公告)号：US09178673B1

公开(公告)日：2015-11-03

申请号：US14330229

申请日：2014-07-14

申请人： Marvell International LTD.

发明人： Peter Loc ,  Timothy J. Donovan ,  Milind Kopikare

IPC分类号： H04W4/00 ,  H04B7/212 ,  H04L5/00 ,  H04W28/20 ,  H04W24/00

CPC分类号： H04L5/0037 ,  H04W24/00 ,  H04W24/10 ,  H04W28/20 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/08

摘要： A base station including a receiver, a processor, and a transmitter. The receiver is configured to receive, during a predetermined period, information from a plurality of stations. The processor is configured to estimate, based on the information received from the plurality of stations during the predetermined period, bandwidth requirement of each of the plurality of stations. The processor is configured to allocate, based on the estimated bandwidth requirement of each of the plurality of stations, a number of timeslots to each of the plurality of stations in which to communicate with the base station. Durations of the timeslots allocated to the plurality of stations are based on the estimated bandwidth requirement of each of the plurality of stations. The transmitter is configured to transmit a message including (i) identifiers identifying each of the plurality of stations and (ii) the number of timeslots allocated to each of the plurality of stations.

摘要翻译： 包括接收机，处理器和发射机的基站。 接收机被配置为在预定时段期间从多个站接收信息。 处理器被配置为基于在预定时段期间从多个站接收的信息来估计多个站中的每个站的带宽要求。 处理器被配置为基于多个站中的每一个的估计的带宽需求来分配到与基站进行通信的多个站中的每一个的多个时隙。 分配给多个站的时隙的持续时间基于多个站中的每一个的估计的带宽要求。 发射机被配置为发送消息，其包括（i）标识多个站中的每一个的标识符和（ii）分配给多个站中的每一个的时隙的数量。

公开(公告)号：US08886839B1

公开(公告)日：2014-11-11

申请号：US13894876

申请日：2013-05-15

申请人： Marvell International Ltd.

发明人： Peter Loc ,  Lawrence Tse ,  Heng-Jui Hsu

IPC分类号： G06F15/16 ,  H04L12/751

CPC分类号： H04L45/02 ,  H04L12/6418

摘要： A network interface includes a network interface controller and a plurality of communication paths between a host and a plurality of different networks. Each of the plurality of communication paths includes a media access controller and a physical layer device. The media access controller is configured to use a same media access controller address for communicating with a respective one of the plurality of different networks. The physical layer device configured to determine at least one of an availability of the respective one of the plurality of different networks and a performance condition of the respective one of the plurality of different networks. The network interface controller is configured to receive, from the host, a selection of one of the plurality of different networks and activate one of the plurality of communications paths based on the selection.

摘要翻译： 网络接口包括网络接口控制器和主机与多个不同网络之间的多个通信路径。 多个通信路径中的每一个包括媒体访问控制器和物理层设备。 媒体接入控制器被配置为使用相同的媒体接入控制器地址来与多个不同网络中的相应一个通信。 物理层设备被配置为确定多个不同网络中的相应一个的可用性和多个不同网络中的相应一个的性能状况中的至少一个。 网络接口控制器被配置为从主机接收多个不同网络中的一个的选择，并且基于该选择激活多个通信路径中的一个。

公开(公告)号：US09055039B1

公开(公告)日：2015-06-09

申请号：US14154464

申请日：2014-01-14

申请人： Marvell International LTD.

发明人： Peter Loc ,  Rahul Kopikare

IPC分类号： H04L29/06

CPC分类号： H04L63/0428 ,  H04L9/0631 ,  H04L9/0637 ,  H04L9/0643 ,  H04L2209/125 ,  H04L2209/38 ,  H04L2209/80 ,  H04W12/02 ,  H04W12/10 ,  H04W84/12

摘要： An apparatus for transmitting N packets including a key mixing circuit to generate N groups of encryption seeds, each based upon a predetermined key, a transmitter address, and a predetermined start value for a packet number. A packet number circuit inserts a different one of N values for the packet number into each of the N packets. Each of the N values for the packet number is greater than, or equal to, the predetermined start value for the packet number. An encryption circuit encrypts each of the N packets using the one of the N groups of encryption seeds that was generated based on the value for the packet number in the respective one of the N packets. An output circuit sends the N packets. The encryption circuit generates each of the N groups of encryption seeds before an input circuit receives the respective one of the N packets.

摘要翻译： 一种用于发送包括密钥混合电路的N个分组的装置，用于基于预定密钥生成N组加密种子，发送机地址和分组号的预定起始值。 分组号电路将分组号的N个值中的不同的N个值插入到每个N个分组中。 分组号的N个值中的每一个大于或等于分组号的预定起始值。 加密电路使用基于N个分组中的相应一个中的分组号的值生成的N组加密种子中的每一个加密N个分组中的每一个。 输出电路发送N个数据包。 在输入电路接收到N个分组中的相应一个之前，加密电路生成N组加密种子中的每一个。

公开(公告)号：US20130315050A1

公开(公告)日：2013-11-28

申请号：US13953355

申请日：2013-07-29

申请人： MARVELL INTERNATIONAL LTD.

发明人： Hongyuan Zhang ,  Rohit U. Nabar ,  Peter Loc

IPC分类号： H04B7/04

CPC分类号： H04B7/0426 ,  H04B7/0417 ,  H04B7/0443 ,  H04B7/0447 ,  H04B7/0632 ,  H04B7/0691 ,  H04B7/0817 ,  H04B7/0874 ,  H04L25/0202 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2647 ,  H04W52/42

摘要： A method of antenna selection, in a MIMO system in which a transmitter having a first plurality of RF chains communicates with a receiver having a second plurality of RF chains, includes transmitting consecutive sounding packets produced by the first plurality of RF chains. The consecutive sounding packets each include a training symbol, and collectively sound a full-size channel for the MIMO system. The method also includes receiving channel state information for each of a plurality of scaled sub-channel estimates determined at the receiver. The channel state information includes at least one of respective gain factors that were applied to the consecutive sounding packets received at the receiver and respective scaling factors that were applied to sub-channel estimates determined at the receiver. The method also includes adjusting power levels applied to the first plurality of RF chains in response to receiving the channel state information.

摘要翻译： 一种在MIMO系统中的天线选择方法，其中具有第一多个RF链的发射机与具有第二多个RF链的接收机通信包括发射由第一多个RF链产生的连续的探测分组。 连续的探测分组各自包括训练符号，并且共同地为MIMO系统发出全尺寸信道。 该方法还包括为在接收机处确定的多个缩放的子信道估计中的每一个接收信道状态信息。 信道状态信息包括应用于在接收机处接收到的连续探测分组的各个增益因子中的至少一个以及应用于在接收机处确定的子信道估计的各个缩放因子。 该方法还包括响应于接收到信道状态信息来调整应用于第一多个RF链的功率电平。

公开(公告)号：US09231737B1

公开(公告)日：2016-01-05

申请号：US14032694

申请日：2013-09-20

申请人： Marvell International Ltd.

发明人： Weishi Feng ,  Peter Loc

IPC分类号： H04L1/16

CPC分类号： H04L1/1692 ,  H04W74/02

摘要： A first wireless device includes a coding module that encodes packets and adds dummy data to a second packet. A first receiver (i) in response to transmission of a first packet, receives a first acknowledgement (ACK) signal, and (ii) in response to transmission of the second packet, receives a second ACK signal. Reception of the first ACK signal is delayed a first delay period from an end of the transmission of the first packet. Reception of the second ACK signal is delayed a second delay period from an end of the transmission of the dummy data. The coding module, prior to the transmission of the second packet and based on time to process the first and second packets at a second wireless device, determines the amount of dummy data to add to the second packet such that the first delay period is a same length as the second delay period.

摘要翻译： 第一无线设备包括对分组进行编码并将虚拟数据添加到第二分组的编码模块。 第一接收机（i）响应于第一分组的传输，接收第一确认（ACK）信号，以及（ii）响应于第二分组的传输，接收第二ACK信号。 第一ACK信号的接收从第一分组的传输结束延迟第一延迟时段。 第二ACK信号的接收从虚拟数据的发送结束延迟第二延迟期间。 编码模块在发送第二分组之前并且基于在第二无线设备处理第一和第二分组的时间来确定要添加到第二分组的伪数据的量，使得第一延迟周期是相同的 长度作为第二延迟期。

公开(公告)号：US09143216B1

公开(公告)日：2015-09-22

申请号：US14138644

申请日：2013-12-23

申请人： Marvell International LTD.

发明人： Peter Loc

IPC分类号： H04Q7/10 ,  H04B7/06

CPC分类号： H04B7/0632 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/06 ,  H04L25/0204 ,  H04L27/261 ,  H04W24/00 ,  H04W52/028 ,  H04W88/02 ,  Y02D70/142

摘要： A first network device including a transceiver, a circuit and a controller. The transceiver receives a first packet broadcast from a second network device to multiple network devices via a channel. A bit in the first packet indicates a request for a condition of the channel. The network devices include the first network device. The circuit determines the condition of the channel based on the bit in the first packet. The controller, prior to the circuit determining the condition of the channel and in response to the bit in the first packet, transitions the circuit to an active state. The controller, subsequent to the circuit determining the condition of the channel, returns the circuit to an inactive state. The transceiver, subsequent to the circuit returning to the inactive state, transmits a second packet to the second network device. The second packet indicates the condition of the channel.

摘要翻译： 包括收发器，电路和控制器的第一网络设备。 收发器经由信道接收从第二网络设备广播到第一网络设备的第一分组。 第一个数据包中的一个位表示一个信道条件的请求。 网络设备包括第一网络设备。 该电路基于第一分组中的比特来确定信道的状况。 控制器在电路确定通道的状态之前，并响应于第一个分组中的位，将电路转换到活动状态。 控制器在确定通道状态的电路之后，将电路返回到无效状态。 在电路返回到非活动状态之后，收发器向第二网络设备发送第二分组。 第二个分组指示信道的状态。

公开(公告)号：US08971306B1

公开(公告)日：2015-03-03

申请号：US13711230

申请日：2012-12-11

申请人： Marvell International Ltd.

发明人： Peter Loc ,  Foo Keong Tang

IPC分类号： H04L12/28 ,  H04W72/04

CPC分类号： H04W72/04 ,  H04W72/1242 ,  H04W74/06 ,  H04W84/12

摘要： A method of operating an access point includes storing, for each of a plurality of channels, a corresponding first value and second value. A first channel is selected according to a channel polling scheme. A first beacon is transmitted over the first channel to announce commencement of communication over the first channel. Subsequent to the first beacon but prior to a second beacon, data is exchanged with a wireless client over the first channel. The method includes, in response to a first time period based on the first value corresponding to the first channel expiring, transmitting the second beacon over the first channel to announce conclusion of communication over the first channel. The method includes, in response to a second time period based on the second value corresponding to the first channel expiring, transmitting a third beacon over the first channel to announce commencement of communication over the first channel.

摘要翻译： 操作接入点的方法包括为多个信道中的每一个存储对应的第一值和第二值。 根据信道轮询方案选择第一信道。 在第一信道上发送第一信标，以宣布在第一信道上开始通信。 在第一信标之后，但在第二信标之前，数据通过第一信道与无线客户端交换。 该方法包括响应于基于对应于第一信道的第一值的第一时间段到期，在第一信道上发送第二信标以通过第一信道的通信结束。 该方法包括响应于基于对应于第一信道的第二值的第二时间段到期，在第一信道上发送第三信标，以宣布在第一信道上开始通信。

公开(公告)号：US09178586B2

公开(公告)日：2015-11-03

申请号：US13953355

申请日：2013-07-29

申请人： MARVELL INTERNATIONAL LTD.

发明人： Hongyuan Zhang ,  Rohit U. Nabar ,  Peter Loc

IPC分类号： H04L27/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L25/02 ,  H04L27/26 ,  H04W52/42

CPC分类号： H04B7/0426 ,  H04B7/0417 ,  H04B7/0443 ,  H04B7/0447 ,  H04B7/0632 ,  H04B7/0691 ,  H04B7/0817 ,  H04B7/0874 ,  H04L25/0202 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2647 ,  H04W52/42

摘要： A method of antenna selection, in a MIMO system in which a transmitter having a first plurality of RF chains communicates with a receiver having a second plurality of RF chains, includes transmitting consecutive sounding packets produced by the first plurality of RF chains. The consecutive sounding packets each include a training symbol, and collectively sound a full-size channel for the MIMO system. The method also includes receiving channel state information for each of a plurality of scaled sub-channel estimates determined at the receiver. The channel state information includes at least one of respective gain factors that were applied to the consecutive sounding packets received at the receiver and respective scaling factors that were applied to sub-channel estimates determined at the receiver. The method also includes adjusting power levels applied to the first plurality of RF chains in response to receiving the channel state information.

摘要翻译： 一种在MIMO系统中的天线选择方法，其中具有第一多个RF链的发射机与具有第二多个RF链的接收机通信包括发射由第一多个RF链产生的连续的探测分组。 连续的探测分组各自包括训练符号，并且共同地为MIMO系统发出全尺寸信道。 该方法还包括为在接收机处确定的多个缩放的子信道估计中的每一个接收信道状态信息。 信道状态信息包括应用于在接收机处接收到的连续探测分组的各个增益因子中的至少一个以及应用于在接收机处确定的子信道估计的各个缩放因子。 该方法还包括响应于接收到信道状态信息来调整应用于第一多个RF链的功率电平。

公开(公告)号：US09088553B1

公开(公告)日：2015-07-21

申请号：US14068760

申请日：2013-10-31

申请人： Marvell International Ltd.

发明人： Peter Loc ,  Rahul Kopikare

IPC分类号： H04L9/28 ,  H04L9/32 ,  H04K1/00 ,  H04L9/00 ,  H04L29/06 ,  H04W12/04

CPC分类号： H04L63/068 ,  H04L63/0428 ,  H04L63/0457 ,  H04L63/123 ,  H04W12/04 ,  H04W12/10 ,  H04W80/02 ,  H04W84/12

摘要： A network device includes a first circuit configured to generate a plurality of packets, and insert, in each of the plurality of packets, a different value for a count. A second circuit receives one or more of the plurality of packets. A third circuit generates a plurality of seeds. Each of the plurality of seeds is based on (i) a predetermined key, (ii) an address of the network device, and (iii) a predetermined value for the count. A fourth circuit encapsulates each of the plurality of packets using one of the plurality of seeds generated based on the value for the count in the respective one of the plurality of packets. A fifth circuit sends a message comprising (i) the address of the network device and (ii) the predetermined value for the count, and sends, subsequent to sending the message, the plurality of encapsulated packets.

摘要翻译： 网络设备包括被配置为生成多个分组的第一电路，并且在多个分组中的每一个中插入不同的计数值。 第二电路接收多个分组中的一个或多个。 第三电路产生多个种子。 多个种子中的每一个基于（i）预定密钥，（ii）网络设备的地址，以及（iii）计数的预定值。 第四电路使用基于多个分组中的相应一个分组中的计数值生成的多个种子中的一个来封装多个分组中的每个分组。 第五电路发送包括（i）网络设备的地址和（ii）计数的预定值的消息，并且在发送消息之后发送多个封装的分组。